Why is playing mahjong too harmful?

Some people like to play mahjong for recreation, but they must exercise restraint. If they indulge in it, it is harmful to their physical and mental health to soak in the mahjong table all day.

When playing mahjong, the back is straight, and the intervertebral disc and ligament are in a state of tension and stiffness for a long time, which will lead to stiff back pain and inability to pitch and rotate. Sedentary will also make the pelvis and sacroiliac joints bear the weight for a long time, affect the blood circulation of lower limbs, lead to numbness of legs and muscle atrophy. Playing mahjong for a long time often can't guarantee a normal diet. Coupled with the lack of general activity, gastrointestinal peristalsis is weakened, and the secretion of digestive juice is reduced, so there are symptoms such as loss of appetite, nausea and vomiting, chest tightness and bloating, and dry stool. Such as mahjong addiction, staying up late, the cerebral cortex will be in a state of high excitement for a long time, which can cause autonomic nerve dysfunction, dizziness, trance, decreased thinking ability and other symptoms. In addition, mahjong is often infected with a variety of pathogenic bacteria, and many players rub back and forth, which is prone to cross infection.